David, with characteristic Oriental subtlety (compare Sa1 21:2), suggests as a reason for leaving Gath that his presence was burdensome and expensive to the king. His real motive was to be more out of the way of observation and control, so as to act the part of an enemy of Saul, without really lifting up his hand against him and his own countrymen of Israel.

The Geshurites bordered upon the Philistines, and lived in the mountainous district which terminates the desert on the northeast (marginal reference). They were a different tribe, or, at least, a different branch of it, from the Geshurites who lived on the northeast border of Bashan, and were Arameans Sa2 15:8. The Gezrites, or Gerzites, may be connected with those who gave their name to Mount Gerizim.

Tidings - The word is not in the original. The sense rather is "to bring them to Gath," as captives and slaves. The prisoners taken would naturally have been part of the spoil, but David dared not to bring them to Gath lest his deceit should be discovered. Obviously these tribes were allies of the Philistines.